Brickium: AI Brick Builder
MOC ideas from bricks you own
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
There's a model hiding in your bin of loose bricks. Say what you want to build: Brickium designs it from the parts you own and checks every step before you start.
Brickium turns the bricks you already own into something new to build.
Most of us have a bin of loose bricks and no idea what to make. Brickium keeps a list of what is in that bin and designs models that use only those parts, then walks you through building them one step at a time.
HOW IT WORKS
1. Add your bricks
Photograph a handful of loose bricks and Brickium suggests which parts it sees. You check the list and correct the counts before anything is saved. You can also import a set by its number to add its whole parts list at once, or type a part number.
2. Say what you want to build
Type it in plain words: "a small red car with four wheels", "a little house with a sloped roof". Or pick one of the ideas Brickium works out from what your bricks can really make.
3. Build it for real
Every design is checked before you see it: every part counted, no pieces that collide, no step that cannot be assembled. Then you get step-by-step 3D instructions. The pieces for the current step are solid; what you have already built is shown faded, the way printed instructions do it.
DESIGNED AROUND WHAT YOU ACTUALLY HAVE
• Your parts, by default. Brickium designs only with pieces you own that are not already used in another build. Switch that off and it may add common pieces you do not have, shown in grey.
• You stay in charge of the list. A photo gives suggestions, not facts; nothing is added until you confirm it, and every count can be corrected later.
• Honest failures. If your bricks cannot make what you asked for, Brickium says so instead of quietly changing your request, and it does not cost you anything.
• Not happy with the result? Ask for another.
BUILD MODE
• A parts checklist with a picture of every piece, before step 1.
• Rotate and zoom the 3D model at any step.
• Pick up a build where you left it.
• Take a model apart in the app and its parts go back into your available bricks.
See a finished example before you add a single brick: it is on the home screen and needs no account.
CREATIONS AND PACKS
One creation = AI designs one model from your bricks, with building instructions. A new account gets one free creation, and another after finishing a first build. More come in creation packs: one-time purchases, no subscription, and they never expire. A creation is used only when a model is actually delivered; adding bricks, scanning, the example and failed attempts are free.
PRIVACY
No ads and no tracking. Photos are passed to Google's Gemini API for recognition and are not stored by Brickium; design requests are passed to OpenAI. Brickium asks your permission before the first of each. You can delete your account and everything in it from inside the app.
Brickium is for people aged 16 and over.
Terms of Use: https://brickium.app/terms
Privacy Policy: https://brickium.app/privacy
LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. Brickium is an independent app and is not affiliated with the LEGO Group. Parts catalogue data is sourced from Rebrickable. Part geometry is derived from the LDraw Parts Library, licensed under Creative Commons Attribution.
Ratings & Reviews
Got a code? Redeem it right in the app.
• New: Me > Redeem code opens Apple's code sheet, and the creations from the code go straight to your account. No trip to the App Store.
• Redeemed a code from a link while Brickium was closed? The creations are added as soon as you open the app signed in.
The developer, 章 刘, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 章 刘
- Size
- 5.9 MB
- Category
- Graphics & Design
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Simplified Chinese, Traditional Chinese
- Age Rating
16+
- 16+
- In-App Purchases
Yes
- Creation Pack (20) $17.99
- Creation Pack (10) $9.99
- Creation Pack (5) $5.99
- Creation Pack (2) $2.99
- Copyright
- © 2026 Zhang Liu
